Jagwire Derailleur Cable Housing

Yes, this is a standard 4mm shift housing, which is the universal size for almost all modern index shifting systems on both road and mountain bikes.

Linear strand housing is designed to be compressionless, meaning it doesn't squish when you pull the cable. This stiffness ensures that your shifter input translates directly to the derailleur, resulting in much crisper and more accurate gear changes.

No, you should not add extra lubricant. This housing comes with a pre-installed Slick-Lube liner that is continuously lubricated during manufacturing, and adding external grease can actually attract dirt and gum up the system.

No, you must use specific brake housing for your brakes. Brake housing is coiled to handle high-pressure loads, whereas this shift housing is linear and could fail dangerously under the tension of braking.

You will need a dedicated cable cutter designed for bicycle housing. Using standard wire cutters or pliers will crush the housing, collapse the internal liner, and ruin the shifting performance.